Sandro says Tottenham can start to believe in winning the Premier League title if they beat Chelsea on Thursday.
Spurs welcome their London rivals to White Hart Lane this week in a key match for both sides as they look to stay in stay in touch with leaders Manchester City and Manchester United.
Harry Redknapp's men are currently seven points off the top in third place, although they do have a game in hand, and Sandro is determined keep up the pressure with another win before Christmas.
The Brazilian midfielder is ready for a tough game against the Blues but feels the support of the White Hart Lane faithful will inspire them to three points.
Sandro also believes that Tottenham have a strong enough squad to sustain a challenge for the league crown.
"We can make a big statement by beating Chelsea," said the 22-year-old.
"It will be a difficult game but we are at home and that helps us. Our support is very good there and that helps.
"Winning would help us to believe we can win the title.
"We can win it. Why not? Every single player in the squad is good, we are a strong team.
"Our bench is strong as well, very good. So if we win this game, the only way will be up for us."